Cooling means for permanent molds



May 22, 1928. v 1,670,614

J. L. DOSTAL COOLING MEANS FOR PERMANENT MOLDS Filed July 9, 1927 2 Sheets-Sheet 1 INVENTOR ATTORNEY JOSEPH L.DO6TA-L.

- J. L. DOSTAL COOLING MEANS FOR PERMANENT MOLDS May 22, 1928. I 1,670,614

Filed July 9, 1927 2 Sheets-Sheet 2 JOSEPH L DosTA L.

INVENTOR.

ATTORNEY I Patented May 22,1928.

I onrrfso 'srrss OFFICE.

.rosnrn L. menu, or nncrnorr, arrcnman, ASSIGINOR T EARL HOLLEY, or nnrrnorr,

urcnrean.

COOLING MEANS FOR PERMANENT HOLDS.

Application filed July 9,

- The object of this invention is to improve the cooling of a series of molds, such as those illustrated in my Patent #1495728, and is an improvement on the cooling means shown in Patent #1593294.

The specific object of the invention is to economize the quantity of air used, as in the construction shown in Patent #1593294 more than one-half of the air is wasted.

An additional object is to decrease the liability of the rotatin mechanism to clog 'up with dust and dirt, y utilizing the pressure of the coolin air to automatically keep the mechanism 0 can.

Figure 1 shows a cross sectional elevation on Fp ane 1-1 of Figure 2. v

igure 2 shows a plan view.

In the figures, A 's a stationary base located on supports B (only one shown), upon 0 which is mounted a shaft C about which rotates a table D. A roller bearing E is provided to support D'on A, so as to reduce friction. The hollow space between A and D is used as an air receiver for thecooling vair received from a pipe F. The air from the space A D is distributed through the pipes G, each of which supplies the air for cooling a pair of molds through the cooling nozzles H J. The molds are mounted on extension bars K, carried around by the table D, and on the supports L M, as shown in the patent to Dostal #1570950. The molds are shown in broken lines, but of course they .may be of any sha e and size.

pemtz'onFThe cooling air entering at F is economically directed against the molds through the nozzles HJ, so as to most efsaid and Anderson 1927. Serial no. 204,572.

fectively cool the molds. The tendency of air to leak out through the bearing E posi- 40 tively prevents the entry of dustand dirt into the bearings, so that the life of the roller bearing E and its track is more than doubled.

Finally, the temperature of the bearing E is kept sufiiciently low so that the lubricant will neither be evaporated and cake, nor will it become so fluid as to escape.

What I claim is i 1. In combination with a traveling series of molds, located on a rotating table, a stationary base located below and sup orting said table, and forming an enclose space therewith, a stationary pipe delivering air to space, air cooling nozzles mounted on said table, said cooling nozzles being adapted to cool said molds.

2. In combination with a traveling series of molds, located on a rotating table, a stationary base located below and supporting said table, and forming an enclosed space therewith, an annular bearing on said base supporting said table, a stationary pipe delivering air to said space, air cooling nozzles mounted on said table, said cooling nozzlcs being adapted to cool said molds.

3. In combination with a traveling series of molds located on a rotating table, cooling means comprising an enclosed space located in the upper central portion of said table, a stationarypipe delivery air to said space, air cooling nozzles mounted on said table,

a plurality of pipes connecting said air nozzles tosaid enclosed space.

In testimony whereof Ivaflix my signature.

JOSEPH L. DOSTAL. 

